Shockwave, Part 2
In 2151, an unknown type of alien, a Klingon, crash-lands in Broken Bow, Oklahoma, trying to escape from other unknown aliens called the Suliban.
After being shot by a scared farmer, the Klingon is taken to Starfleet for examination and assistance, where it is decided that he should be taken to his homeworld by Earth's first starship and crew. With the mission barely begun, the Klingon is kidnapped, forcing the crew to find him and make first contact with the Suliban race.

Carbon Creek
T'Pol disputes accepted accounts, telling Archer and Trip a story about her great-grandmother and three other Vulcans crash-landing in Pennsylvania in the 1950s.